Know Your Environment. Protect Your Health.

MTBE

Kress Municipal Water System

MTBE was used as gasoline oxygenation additive to boost the octane number. In 2005, MTBE was replaced by ethanol as a gasoline additive. MTBE causes cancers in rats.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.640 ppb53ND - 1.44 ppb
20190.694 ppb52ND - 1.76 ppb
2020ND50ND
20210.238 ppb51ND - 1.19 ppb
20221.20 ppb53ND - 3.15 ppb
20230.236 ppb51ND - 1.18 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 13 ppb

The EWG Health Guideline of 13 ppb for MTBE was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-18Q1802138001ND
2018-05-17Q1820299002ND
2018-05-17Q18202990030.940 ppb
2018-08-01Q18305680010.820 ppb
2018-10-09Q18401250011.44 ppb
2019-01-24Q19035710031.76 ppb
2019-04-09Q1914247002ND
2019-04-09Q1914247003ND
2019-07-09Q19427240021.71 ppb
2019-10-29Q1974402001ND
2020-01-16Q2001710003ND
2020-04-08Q2014314001ND
2020-04-08Q2014314006ND
2020-07-23Q2028982002ND
2020-11-12Q2044650001ND
2021-02-09Q2103898003ND
2021-04-20Q2110121008ND
2021-04-20Q2110121010ND
2021-08-05Q21206880011.19 ppb
2021-10-14Q2128808001ND
2022-01-13Q2201413002ND
2022-04-07Q2210890002ND
2022-04-07Q22108900042.15 ppb
2022-08-15Q22236460013.15 ppb
2022-10-18Q22315230020.690 ppb
2023-01-19Q23028650021.18 ppb
2023-04-05Q2312655001ND
2023-07-31Q2330814004ND
2023-07-31Q2330814006ND
2023-11-06Q2347394001ND